Cane-crusher



No. 608,885. Patented Aug. 9, 11898.

A. L. MARSHALL.

CANE CRUSHER.

pplic ion filed Mar. 4, 1898.)

(N0 meal. 2 SheetsSheet l.

No. 608,885. Patented Aug. 9, I898..

. ARSH C C R U S Application filed Man 4, 1898.) (N 0 M o d e l 2 Sheets-Sheet 2.

Miran Starts nrnw'r FFICE.

ALBERT Ii. MARSHALL, OF NEW ORLEANS, LOUISIANA.

CANE-CRUSHER.

SPEGIFIGATION forming part of Letters Patent No. 608,885, dated August 9, 1898. Application filed March 4,1898. Serial No. 672,588. (No model.)

T0 at whom it may concern.-

Be it known that I, ALBERT L. MARsHALL,a

citizen of the United States, residing at New 7 Orleans, in the parish of Orleans and State of Louisiana,have invented certain new and useful Improvements in Oane-Orushersg and I do I hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in 'cane-crushers for preliminarily crushing and tearing the cane before it is delivered to the expressing-rolls. It has been found by practical experiment that better results are thus obtained than is the case when the caneis fed to the expressing-rolls in the first instance.

The object of my invention is to provide improved means for this purpose; and with this object in view my invention consists in the construction and combinations of parts,as hereinafter described and claimed.

In the accompanying drawings, Figure 1 is an end view of a part of a cane-mill, showing my improved crusher, the mill proper not being shown. Fig. 2 is a longitudinal central section of the same. Figs. 3 and 4. show in elevation modified forms of the rolls. Fig. 5 is a cross-section of the lower roll of Fig. 3, and Fig. 6 is a cross-section of the lower roll of Fig. 4.

A and B represent rolls located in bearings in the housing of a cane-mill just above an inclined chute O. The roll A is roughened over its entire surface and is located above the roll 13, which is provided with straight longitudinal ribs or ridges b and convex portions 1) between said ribs.

The roll B is cast in the form shown and is usually hardened on the outside. The roll A is usually cast smooth and afterward roughened. On the ends of the roll A are flanges a, which serve to guide the cane between the rolls. They slightly overlap the roll B.

The chute O is provided Withabottom c and sides a, on which the cane is fed from the carrier in the ordinary way. Gear-wheels d d are mounted on the, shafts of the rolls and mesh with each other. As shown, they are of the same size, driving the rolls at the same speed; but, if desired, one may be larger than the other, whereby a difference of speed between the rolls may be obtained, if desired.

The rolls are driven by any convenient means, preferably by cogearing, as is ordinarily the case with crushers.

In Fig. 3 the lower roll B is shown as having spiral ribs or ridges b and convex portions 12 between said ribs, and in Fig. 4. the lower roll 13 is shown as having zigzag ribs or ridges b andconveX portions b. In other respects the construction is the same as the form shown in Figs. 2 and 3.

In the operation of the device the sharp teeth out into the cane and lacerate the same, tearing the fibers from each other longitudinally and at the same time breaking up the stalks, while the rounded teeth press on the cane and compress it between them and the cylindrical portions of the opposite roller, thus extracting a portion of the juice before the crushed produce is fed to the mill proper. Thus the combined action of the roughened and the ribbed rolls is highly effective in tearing and preliminarily crushing the cane.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, of the United States, is-- 1. In a cane-crusher the combination of a roughened roll and a roll provided with small converi portions running the whole length of the roll and provided with ribs thereon, substantially as described.

2. In a cane-crusher, the combination of a roughened roll, provided with circular enlargements at its ends and a roll provided with small convex portions running the whole length of the roll and parallel to the axis thereof and also provided with zigzag ribs about said roll, substantially as described.

3. In a cane-crusher, the combination of a roughened roll and a roll provided with small convex portions parallel to the axis of the roll and with zigzag ribs running about said roll and located on said convex portions, sub stantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

ALBERT L. MARSHALL. 

